Seek knowledge from four people

It is narrated from Yazid bin Amirah that when the time of death drew near for Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him), the people said: O Abu Abd al-Rahman! Give us some counsel. He said: Sit me up. Then he said: Knowledge and faith are there in their place; whoever seeks them will find them. He repeated this three times, then said: Seek knowledge from four men: from Uwaymir Abu al-Darda', Salman al-Farisi, Abdullah bin Mas'ud and Abdullah bin Salam (may Allah be pleased with them), for I heard the Messenger of Allah (peace and blessings be upon him) say: "Indeed he (Abdullah bin Salam) is the tenth of ten (people) in Paradise."
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and Yazid bin Amirah al-Saksaki is a student of Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him).

Makhul relates that one day Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) fell ill while Yazid bin Amirah al-Zubaydi was with him. Seeing his condition, Yazid began to weep. Mu'adh (may Allah be pleased with him) asked: Why are you weeping? He said: I am weeping at the cutting off of the knowledge that I used to acquire from you every day. Mu'adh (may Allah be pleased with him) said: Knowledge and faith are like a fragrance; get up and seek them. Yazid asked: With whom shall I seek them? Mu'adh (may Allah be pleased with him) said: With four people: Uwaymir Abu al-Darda', Abdullah bin Mas'ud, Salman al-Farisi and Abdullah bin Salam, for it used to be said about him: "He is the tenth of the ten fortunate ones of Paradise." Yazid asked: And Umar bin al-Khattab (may Allah be pleased with him)? He said: Do not ask him about anything (now), for he is occupied with your affairs (the responsibilities of the caliphate).